Wastewater :  measurement and automation / 
A. Beckerath...[et al.] 
 - Switzerland :  Endress + Hauser (International),  1992 
 - 248 p. :  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label>39520220 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Measurement<br/>Sewage--Automation